NetWorker: LDAP Integration Failing with "LDAP: error code 12 - Unavailable Critical Extension"

• The external authentication provider is an LDAP server. This issue is not applicable to Microsoft Active Directory (AD) servers.
• The external authority integration wizard or the authc-create-ldap-config script the following error appears

Error executing command. Failure: 400 Bad Request. Server message: Failed to verify configuration LDAP_SERVER_NAME: [LDAP: error code 12 - Unavailable Critical Extension];
nested exception is javax.naming.OperationNotSupportedException: [LDAP: error code 12 - Unavailable Critical Extension]; remaining name 'ou=People,dc=DOMAIN,dc=DOMAIN'

[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=-1 msgId=-1 - fd=1408 slot=1408 LDAP connection from IP_ADDR to IP_ADDR
[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=0 msgId=1 - BIND dn="uid=BIND_ACCOUNT,ou=People,dc=DOMAIN,dc=DOMAIN" method=128 version=3
[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=0 msgId=1 - RESULT err=0 tag=97 nentries=0 etime=0 dn="uid=BIND_ACCOUNT,ou=People,dc=DOMAIN,dc=DOMAIN"
[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=1 msgId=2 - SRCH base="ou=People,dc=DOMAIN,dc=DOMAIN" scope=2 filter="(objectClass=inetOrgPerson)" attrs=ALL
[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=1 msgId=2 - RESULT err=4 tag=101 nentries=1000 etime=1 notes=U
[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=2 msgId=3 - SRCH base="ou=People,dc=DOMAIN,dc=DOMAIN" scope=2 filter="(objectClass=inetOrgPerson)", unsupported critical extension
[DD/MM/YYYY:HH:MM:SS -0500] conn=99012497 op=2 msgId=3 - RESULT err=12 tag=101 nentries=0 etime=0

In this example, the query limit is 1000 which was exceeded.

Changed the user search filter to config-user-search-filter="uid={0}"

• NetWorker: How To Set up LDAP/AD using authc_config scripts
• NetWorker: How to update AD information for NMC AD/LDAP external authentication